Excavator Engine Parts

4089542 Rear Crankshaft Seal Kit for Cummins M11 ISM QSM11 Engines

Q: What numbers are documented for 4089542?

Primary Equipment Part Number: 4089542. Serviced Component Number: 4923644. Published Service Family: 4023018. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 4089542 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

4089542 Rear Crankshaft Seal Kit for Cummins M11 ISM QSM11 Engines, OEM/reference 4089542, Rear Crankshaft Oil Seal Kit, product view 1

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OEM / reference4089542

SpecificationRear Crankshaft Oil Seal Kit

Catalog ID74037863

4089542 is a Cummins rear crankshaft seal kit for M11/ISM/QSM11 engine and flywheel-housing arrangements. Published data shows oil seal 4923644 serviced as kit 4089542 and also lists 4023018 in the service family. Confirm clutch/PTO arrangement, flywheel housing and engine CPL.

Product Type: Rear crankshaft oil seal kit
Position: Rear/flywheel-housing side
Kit Contents: Confirm engine and housing arrangement

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Cummins service kit	4089542
Serviced Component Number	Oil seal serviced as this kit	4923644
Published Service Family	Catalog-associated reference	4023018

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

4089542

Other documented relationship

4923644
4023018

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Rear Crankshaft Oil Seal Kit

Category: Excavator Engine Parts
Catalog ID: 74037863
Photo views: 4

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

2 model references

Engines: Cummins M11 / ISM / QSM11 family
Fitment limitation: Confirm clutch/PTO arrangement, housing and CPL

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 4089542

Which machines use 4089542?

Recorded compatible model references include Engines: Cummins M11 / ISM / QSM11 family, Fitment limitation: Confirm clutch/PTO arrangement, housing and CPL. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 4089542?

No alternate number is listed for 4089542. Send the original nameplate for an alternate-number check.

How do I confirm 4089542 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

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